Investigating the ingredients in food
Homework
What surface a car goes fastest on
Magnets attraction towards eachother
Answer:
A.
Explanation:
If there is the same amount of demand but the price increases, the supply will go up because less is selling, but the demand is the same.
According to the result of the test statistic, the p-values are given by:
a) 0.0352.
b) 0.9648.
c) 0.0704.
<h3>How to find the p-value of a test?</h3>
It depends on the test statistic z, as follows.
- For a left-tailed test, it is the area under the normal curve to the left of z, which is the <u>p-value of z</u>.
- For a right-tailed test, it is the area under the normal curve to the right of z, which is <u>1 subtracted by the p-value of z.</u>
- For a two-tailed test, it is the area under the normal curve to the left of -z combined with the area to the right of z, hence it is <u>2 multiplied by 1 subtracted by the p-value of z.</u>
In this problem, the test statistic is z = 1.8, which has a p-value of 0.9648.
Item a:
Right-tailed test, hence the p-value is of 1 - 0.9648 = 0.0352.
Item b:
Left-tailed test, hence the p-value is of 0.9648.
Item c:
Two-tailed test, hence the p-value is of 2 x (1 - 0.9648) = 2 x 0.0352 = 0.0704.
You can learn more about p-values at brainly.com/question/13873630
